What additional requirement is noted for fan-assisted vents?

Fan-assisted vents are designed to enhance the efficiency of venting systems, particularly in high-efficiency appliances where natural draft may not suffice. An important additional requirement for these systems is to reference manufacturer maps.

Manufacturer maps provide specific guidance on the installation and operation of venting systems, ensuring compliance with safety and performance standards. These maps typically include crucial information about the proper sizing, length, and configuration of the venting system based on the type of appliance being vented. Following these guidelines helps to prevent issues such as backdrafting or inadequate venting, which can lead to dangerous situations like carbon monoxide buildup.

Insulating the venting system or complying with the requisite size of draft hoods, while important in their own right, do not specifically address the need to consult the manufacturer’s recommendations. Thus, referencing manufacturer maps is essential for the successful and safe installation of fan-assisted vents.